This is a script that can download, process, and save the animal images
as a tensorflow dataset and as sets of png images.

Usage:
	To run for the first time:
		python3 load-dataset.py
	
	To update the animal pictures from the ftp server:
		python3 load-dataset.py download
		python3 load-dataset.py -download
		python3 load-dataset.py --download
		python3 load-dataset.py d
		python3 load-dataset.py -d
		python3 load-dataset.py --d
	
When run for the first time, it places a hidden file named
".isnotfirstdownload" in the base directory so that it will skip the
download step.

2022 Stephen Stengel <stephen.stengel@cwu> and friends
